{"product_id":"990-04-xx-01-00-proximity-transmitter-bently-nevada-4-20ma-output","title":"990-04-XX-01-00 Proximity Transmitter Bently Nevada 4-20mA Output","description":"\u003ch3\u003e\u003cstrong\u003eProduct Introduction\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003e990-04-XX-01-00\u003c\/strong\u003e (MOD 147202-01) is a specialized 2-wire vibration transmitter designed to integrate proximity probe signals directly into PLC or DCS control systems. This \u003cstrong\u003eBently Nevada 990\u003c\/strong\u003e unit provides a proportional 4 to 20 mA output, representing a full-scale range of 0-4 mils pp. It is engineered for critical machinery where a traditional monitor rack is not feasible. We recommend downloading the \u003cstrong\u003e990 series\u003c\/strong\u003e wiring schematic to ensure proper loop resistance balancing. Contact our technical desk for the official \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0722\/7863\/8774\/files\/990_Vibration_Transmitter_Datasheet_-_141612_0a788280-dc17-4c54-adce-e1d727f18373.pdf?v=1776937601\"\u003e\u003cstrong\u003e990-04-XX-01-00\u003c\/strong\u003e technical data sheet\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eGlobal PLC Spare HUB's Insight\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eFrom an engineering perspective, the \u003cstrong\u003e990-04-XX-01-00\u003c\/strong\u003e is the go-to solution for high-density plant integration. Its most significant advantage is the non-interacting zero and span adjustments, which simplify field calibration immensely. Unlike standard proximity systems, the \u003cstrong\u003eBently Nevada 990\u003c\/strong\u003e features a \"Not OK\" signal defeat. If a probe fault occurs, the output drops below 3.6 mA in less than 100 µs, preventing false trips in your control logic. The \u003cstrong\u003e990-04-XX-01-00\u003c\/strong\u003e is specifically optimized for use with 3300 NSv probes, which are essential for small-diameter shafts or constrained target areas.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eTechnical Parameters \u0026amp; Performance\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: \u003cstrong\u003eBently Nevada\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel\u003c\/strong\u003e: \u003cstrong\u003e990-04-XX-01-00\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType\u003c\/strong\u003e: \u003cstrong\u003e990 Vibration Transmitter\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFull-Scale Range\u003c\/strong\u003e: 0-4 mils pp (0-100 μm pp)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutput Signal\u003c\/strong\u003e: 4 to 20 mAdc (2-wire configuration)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLoop Accuracy\u003c\/strong\u003e: Within ±1.5% of full-scale\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFrequency Response\u003c\/strong\u003e: 5 Hz to 6,000 Hz (+0, -3 dB)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Requirements\u003c\/strong\u003e: +12 to +35 Vdc at terminals\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Loop Resistance\u003c\/strong\u003e: 1,000 Ω at 35 Vdc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCurrent Limiting\u003c\/strong\u003e: 23 mA typical\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProbe Gapping\u003c\/strong\u003e: 0.5 to 1.75 mm (20 to 55 mils)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnvironmental Rating\u003c\/strong\u003e: CSA Division 2 \/ Zone 2 compatible\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTransmitter Weight\u003c\/strong\u003e: 0.43 kg (0.9 lbm)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eConfiguration Breakdown\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003e990\u003c\/strong\u003e — Vibration Transmitter Series\u003cbr\u003e  └── \u003cstrong\u003e-04\u003c\/strong\u003e (Full-scale Option)\u003cbr\u003e      └── 0-4 mils pp (0-100 μm pp) range\u003cbr\u003e  └── \u003cstrong\u003e-XX\u003c\/strong\u003e (System Length Option)\u003cbr\u003e      └── \u003cstrong\u003e-50\u003c\/strong\u003e: 5.0 meters (16.4 feet)\u003cbr\u003e      └── \u003cstrong\u003e-70\u003c\/strong\u003e: 7.0 meters (23.0 feet)\u003cbr\u003e  └── \u003cstrong\u003e-01\u003c\/strong\u003e (Mounting Option)\u003cbr\u003e      └── CSA Division 2 \/ Zone 2 compliant\u003cbr\u003e  └── \u003cstrong\u003e-00\u003c\/strong\u003e (Agency Approval Option)\u003cbr\u003e      └── Not required \/ Standard build\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eInstallation \u0026amp; System Compatibility\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput Source\u003c\/strong\u003e: Specifically accepts 1 non-contacting 3300 NSv Proximity Probe.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTarget Size\u003c\/strong\u003e: Minimum required target diameter is 9.5 mm (0.375 in).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBNC Output\u003c\/strong\u003e: Front-facing BNC provides a raw Proximitor signal for field diagnostics.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTerminal Wiring\u003c\/strong\u003e: Accepts standard twisted-pair shielded cable for the 4-20mA loop.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting\u003c\/strong\u003e: Designed for DIN rail or bulkhead installation in protective enclosures.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eApplication Scenarios \u0026amp; Diagnostic Capabilities\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSmall Turbomachinery\u003c\/strong\u003e: Ideal for pumps and fans with small shaft diameters.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDirect DCS Integration\u003c\/strong\u003e: Eliminates the need for intermediary 3500 series monitor racks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThrust \u0026amp; Radial Vibration\u003c\/strong\u003e: Monitors shaft position and dynamic motion in balance-of-plant assets.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFault Diagnostics\u003c\/strong\u003e: Sub-3.6 mA output allows the DCS to distinguish between \"High Vibration\" and \"Sensor Failure.\"\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eShipping \u0026amp; Warranty\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCourier Partners\u003c\/strong\u003e: Fast global transit via \u003cstrong\u003eFedEx\u003c\/strong\u003e, \u003cstrong\u003eUPS\u003c\/strong\u003e, and \u003cstrong\u003eDHL\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrder Processing\u003c\/strong\u003e: Dispatched within 24-48 hours.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty Support\u003c\/strong\u003e: Includes a comprehensive \u003cstrong\u003e12-month professional warranty\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrigin\u003c\/strong\u003e: Manufactured in the U.S.A.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eFAQ\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQuestion:\u003c\/strong\u003e What happens to the \u003cstrong\u003e990-04-XX-01-00\u003c\/strong\u003e output if the probe cable is cut?\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAnswer:\u003c\/strong\u003e The transmitter enters a \"Not OK\" state, dropping the loop current below 3.6 mA within 100 microseconds.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQuestion:\u003c\/strong\u003e Can I use a standard 3300 XL 8mm probe with the \u003cstrong\u003e990\u003c\/strong\u003e transmitter?\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAnswer:\u003c\/strong\u003e No, the \u003cstrong\u003e990-04-XX-01-00\u003c\/strong\u003e is specifically tuned for the electrical characteristics of the 3300 NSv probe series.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQuestion:\u003c\/strong\u003e Is the \u003cstrong\u003e990-04-XX-01-00\u003c\/strong\u003e zero\/span adjustment sensitive to loop resistance?\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAnswer:\u003c\/strong\u003e No, the adjustments are non-interacting, allowing for precise calibration regardless of the external loop load.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQuestion:\u003c\/strong\u003e Why is my \u003cstrong\u003e990\u003c\/strong\u003e signal flickering during startup?\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAnswer:\u003c\/strong\u003e Ensure the probe is gapped between 20 and 55 mils; values outside this range will cause signal instability.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQuestion:\u003c\/strong\u003e Does the \u003cstrong\u003e990-04-XX-01-00\u003c\/strong\u003e require a separate Proximitor?\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAnswer:\u003c\/strong\u003e No, the \u003cstrong\u003e990\u003c\/strong\u003e unit functions as both the Proximitor and the 4-20mA transmitter in one housing.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eSelection \u0026amp; Buying Guide\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength Matching\u003c\/strong\u003e: Match the \u003cstrong\u003e-XX\u003c\/strong\u003e option strictly to your probe\/extension cable total length (5m or 7m).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAgency Check\u003c\/strong\u003e: If your facility requires explosion-proof ratings, ensure the \u003cstrong\u003e-01\u003c\/strong\u003e option fits your site classification.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTarget Area\u003c\/strong\u003e: Verify your shaft target area meets the 9.5 mm minimum diameter to avoid \"edge effects\" in data.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Supply\u003c\/strong\u003e: For maximum accuracy, provide a stable 28 Vdc supply to the 4-20mA loop.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0722\/7863\/8774\/files\/990_Graphs_and_Figures.png?v=1775026312\" alt=\"990 Graphs and Figures\" style=\"margin-bottom: 16px; float: none;\"\u003e\u003c\/div\u003e","brand":"Bently Nevada","offers":[{"title":"Default Title","offer_id":45013883355318,"sku":"990-04-XX-01-00","price":214.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0722\/7863\/8774\/files\/BentlyNevada990_3.jpg?v=1775025777","url":"https:\/\/www.plcsparehub.com\/products\/990-04-xx-01-00-proximity-transmitter-bently-nevada-4-20ma-output","provider":"Global PLC Spare Hub","version":"1.0","type":"link"}